Patent US2998636A successfully refreshed from Google Patents.
US2998636A
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Methods of fabricating antifriction bearings
Assignee: SKF Industries Inc
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Filing: 1958-10-16
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Granted: 1961-09-05
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Expires: 1978-10-16
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Spence
- 👤 Francis R Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:13
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/58; F16C33/64; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/49682; Y10T29/49684; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE502554A
Cited
US1080169A
Cited
DE924924C
Cited
GB617991A
Cited
US2629165A
Cited
US2719765A
Cited
US2783528A
Cited
US2913810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |